package com.itheima.service;

import com.alibaba.dubbo.config.annotation.Service;
import com.itheima.dao.PermissionDao;
import com.itheima.dao.RoleDao;
import com.itheima.dao.UserDao;
import com.itheima.pojo.Permission;
import com.itheima.pojo.Role;
import com.itheima.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

import java.util.Set;

/**
 * @author ：yeshenyue
 * @date ：Created in 2019/12/10
 * @description ：用户服务
 * @version: 1.0
 */
@Service
@Transactional
public class UserServiceImpl implements UserService{
    @Autowired
    private UserDao userDao;
    @Autowired
    private RoleDao roleDao;
    @Autowired
    private PermissionDao permissionDao;
    //根据用户名查询数据库中的用户信息  还需要查询用户关联的角色以及角色关联的权限
    public User findByUsername(String username) {
        User user = userDao.findByUsername(username);
        if(user != null){
            //根据用户id查询对应的角色
            Set<Role> roles = roleDao.findByUserId(user.getId());
            //遍历角色  查询对应的权限
            if(roles != null && roles.size() > 0){
                for (Role role : roles) {
                    //根据角色id查询对应的权限
                    Set<Permission> permissions = permissionDao.findByRoleId(role.getId());
                    role.setPermissions(permissions);
                }
            }
            user.setRoles(roles);
        }
        return user;
    }
}
